ZHCSQV1C March 2020 – December 2022 TCAN1463-Q1
PRODUCTION DATA
This is an internal and external flag that can be used to control the power-up sequence of the system. When a new battery connection to the transceiver is made the PWRON flag is set signifying a cold start condition. The TCAN1463-Q1 treats any undervoltage conditions on the VSUP, VSUP < UVSUP(F), as a cold start. Therefore, when the VSUP > UVSUP(R) condition is met the TCAN1463-Q1 sets the PWRON flag which can be used by the system to enter a routine that is only called upon in cold start situations. The PWRON flag is indicated by nFAULT driven low after entering silent mode from either standby mode or sleep mode. This flag is cleared after a transition to normal mode.